{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T18:43:04Z","timestamp":1775673784725,"version":"3.50.1"},"reference-count":75,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2022,8,23]],"date-time":"2022-08-23T00:00:00Z","timestamp":1661212800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Funda\u00e7\u00e3o Arauc\u00e1ria","award":["10936\/2016"],"award-info":[{"award-number":["10936\/2016"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Weeds pose a problem, infesting areas and imposing competition and harvesting difficulties in agricultural systems. Studies that provide the use of alternative methods for weed control, in order to minimize negative impacts on the environment, have intensified. Native flora represents a source of unexplored metabolites with multiple applications, such as bioherbicides. Therefore, we aimed to carry out a preliminary phytochemical analysis of crude extracts and fractions of Miconia auricoma and M. ligustroides and to evaluate these and the isolated metabolites phytotoxicity on the growth of the target species. The growth bioassays were conducted with Petri dishes with lettuce, morning glory, and sourgrass seeds incubated in germination chambers. Phytochemical analysis revealed the presence of flavonoids, isolated myricetin, and a mixture of quercetin and myricetin. The results showed that seedling growth was affected in a dose-dependent manner, with the root most affected and the seedlings of the lettuce, morning glory, and sourgrass as the most sensitive species, respectively. Chloroform fractions and myricetin were the most inhibitory bioassays evaluated. The seedlings showed structural changes, such as yellowing, nonexpanded cotyledons, and less branched roots. These results indicate the phytotoxic potential of Miconia allelochemicals, since there was the appearance of abnormal seedlings and growth reduction.<\/jats:p>","DOI":"10.3390\/molecules27175356","type":"journal-article","created":{"date-parts":[[2022,8,22]],"date-time":"2022-08-22T23:49:56Z","timestamp":1661212196000},"page":"5356","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Reduction of Weed Growth under the Influence of Extracts and Metabolites Isolated from Miconia spp."],"prefix":"10.3390","volume":"27","author":[{"given":"Gabriel Rezende","family":"Ximenez","sequence":"first","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Biologia Comparada, Centro de Ci\u00eancias Biol\u00f3gicas, Departamento de Biologia, Universidade Estadual de Maring\u00e1, Avenida Colombo 5790, Maring\u00e1 87020-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mirelli","family":"Bianchin","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Qu\u00edmica, Centro de Ci\u00eancias Exatas, Departamento de Qu\u00edmica, Universidade Estadual de Maring\u00e1, Avenida Colombo 5790, Maring\u00e1 87020-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jo\u00e3o Marcos Parolo","family":"Carmona","sequence":"additional","affiliation":[{"name":"Gradua\u00e7\u00e3o em Biotecnologia, Centro de Ci\u00eancias Biol\u00f3gicas, Departamento de Biotecnologia, Gen\u00e9tica e Biologia Celular, Universidade Estadual de Maring\u00e1, Avenida Colombo 5790, Maring\u00e1 87020-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Silvana Maria","family":"de Oliveira","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Qu\u00edmica, Centro de Ci\u00eancias Exatas, Departamento de Qu\u00edmica, Universidade Estadual de Maring\u00e1, Avenida Colombo 5790, Maring\u00e1 87020-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3477-4544","authenticated-orcid":false,"given":"Osvaldo","family":"Ferrarese-Filho","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Ci\u00eancias Biol\u00f3gicas, Centro de Ci\u00eancias Biol\u00f3gicas, Departamento de Biologia Celular e Gen\u00e9tica, Universidade Estadual de Maring\u00e1, Avenida Colombo 5790, Maring\u00e1 87020-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lindamir Hernandez","family":"Pastorini","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Biologia Comparada, Centro de Ci\u00eancias Biol\u00f3gicas, Departamento de Biologia, Universidade Estadual de Maring\u00e1, Avenida Colombo 5790, Maring\u00e1 87020-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,23]]},"reference":[{"key":"ref_1","first-page":"54","article-title":"Secondary Plant Metabolites","volume":"11","author":"Borges","year":"2020","journal-title":"Rev. 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